Sliding-jaw wrench.



' P. GUSTA @L W. G. zlLlNsKY.

summe JAW WRENCH. APPUCATION FILED lAN.-19, 19.15.

Patented Aug. 28, 1917.

1111/ lll/fifi Il WITNESSES INVENTOR fmiqfrmma( ilNlTED TTE@ PATENT FFlftE.

:PAUL GLISTA AND WALENTG. ZILINSKY, 0F MCKEES ROCKS, PENNSYLVANIA.

SLIDING-JAW WRENCH.

inseam.

Application led January 19, 1915.

To all whom it may concern:

Be it known that we, PAUL GLrsTA and VVALENT G. ZILINSKY, subjects of the E1nperor of Austria, residing at McKees Rocks, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Sliding-J aw Wrenches, of which the following is a specification.

This invention relates to sliding jaw wrenches and has for its object to provide a wrench of such type, in a manner as hereinafter set forth, with a sliding jaw capable of being conveniently slid upon the shank of a wrench and having means engaging with one edge of the shank at a plurality of points to lock the sliding jaw from movement after the latter has been adjusted.

Further objects of the invention are to provide a sliding jaw wrench which is comparatively simple in its construction and arrangement, strong, durable, efiicient and convenient in its use, readily set up and comparatively inexpensive to manufacture.

l/Vith the foregoing and other objects in view the invention consists of the novel construction, combination and arrangement of parts, as hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claim hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views Figure 1 is a vertical elevation, looking in one direction, of a sliding jaw wrench in accordance with this invention.

Fig. 2 is a vertical elevation, at right angles to Fig. 1 of a sliding jaw wrench in accordance with this invention.

Referring to the drawings in detail 1 denotes the shank, having one edge thereof toothed as at 2. Secured to one end of the shank 1 is a handle 3 and on the other end a stationary jaw 4.

The reference character 5 denotes a sliding jaw having formed integral therewith as well as projecting inwardly therefrom a front plate 6. Formed integral with the jaw 5 and projecting inwardly therefrom, as well as being formed integral with the front plate 6, is a side plate 7 having an offset portion 8. Formed integral with the other side Specification of Letters atent.

Patentedl-kug. 28, 1917.

Serial No. 3,165.

of the jaw 5 and projecting inwardly therefrom, as well as being formed integral with the front plate 6, is a side plate 9, having an offset portion 10. The plates 7, 9, as well as the offset portions 8, 10 extend at the sides of the shank 1, and the said plates 7, 9. are connected together at their forward ends by a strap 11 and at their rear ends by a strap 12. The straps 11, 12 are opposed to the rear edge of the shank 1. The plate 6 at its inner end is bent inwardly at inclinations as at 13. The plates 7, 9, have their front corners curved to the inclined inner portions of the plate 6.

The plates 7, 9, are connected together by pins 14, 15, and which constitute shafts. The offset portions 8, 10 of the plates 7, 9, are connected together by pins 16, 17 and `which constitute shafts.

Rotatably mounted upon the shafts 14, 15, are toothed wheels 18, 19, respectively. The wheel 19 is of less diameter than the wheel 18 and the wheel 18 engages with the teeth 2 of the shank 1.

Rotatably mounted upon the pin 16, is a toothed wheel 20 and rotatably mounted upon said shaft 16, at each side of the wheel 20, is a pinion 21, and the said pinions 21 are fiXedly secured to the wheel 20 so as to rotate therewith.

Engaging with the pinions 21 is a pair of pawls 22 and which are mounted upon the pin 17 and engaging with the said pawls 22 are springs 23 whereby the pawls are maintained in engagement with the pinions 2l, thus preventing rotation of the wheel 20 and locking the wheels 18, 19. The pawls 22 are shifted from engagement with the pinions 21, so as to free the wheel 20, by a bar 24, which extends across the inner faces of the pawls 22, and said bar 24 is carried by a lever 25, the latter being pivoted upon the pin 17, and formed with a handle 26. The lever 25 projects through the inclined portion 13 of the front plate 6.

-When the handle 26 of the lever is swung inwardly, the bar 24 moves the pawls 22 clear of the pinion 21 and under such conditions the sliding jaw can be shifted to the desired point upon the shank 1. When pressure upon the handle 26 is released the springs 23 force the pawls 22 against the pinions 21 and lock the toothed wheels thereby preventing movement of the sliding jaw.

What we claim is A wrench comprising a toothed shank having a jaw rigid therewith, an adjustable aw slidably mounted on said shank and having inwardly projecting spaced side plates and an inwardly projecting front plate providing a chamber, said side plates having inner offset portions providing an enlargement of said chamber, a pair of spaced parallel shafts arranged on a plane parallel With the longitudinal axis of the shank and connecting the outer portions of said side plates, a toothed Wheel rotatably mounted on the outermost shaft and engaging the teeth of said shank, a smaller toothed Wheel rotatably mounted upon the other shaft and in mesh With the first named Wheel, a pair of spaced parallel pins connecting the inner offset portions of said side plates, a toothed Wheel rotatably mounted centrally upon the outermost pin and meshing with the smaller toothed Wheel and the teeth of the shank7 pinionsiixedly secured to each side ofthe last named Wheel7 spring pressed pawls mounted upon and adjacent each end of the other pin and each engaging one of said pinions, and a lever pivoted on the last named pin intermediate its'ends and provided With a cross bar which extends across the inner faces of the pawls for releasing the saine from the pinions.

ln testimony whereof We aiiiX our signatures in presence of two Witnesses.

PAUL GLISTA.

, hi WALENT e. ziLrNsKY.

Vitnesses: l

CARL F. v'oN RICHARDS, MAX H. Snonovrrz.

Copies of this patent may be obtained for pye cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

